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I am working on D3 canvas graphs; I want to increase frame rate, for that purpose I am thinking to offload the animation related code to GPU from CPU. Following articles on this topic can be found on the internet:
Offloading Computation to your GPU
Taking advantage of GPU acceleration in the 2D canvas
Unleash the Power of Hardware-Accelerated HTML5 Canvas
But I couldn't apply anything, moreover I don't know how to implement and where to implement this code.
Any other suggestions for offloading the load to GPU from CPU are also welcome.
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How can I detect QR codes when processing the pixels of an image?
The image might be pixelated (low-fidelity), noisy (missing or extra pixels in a line), blurry (antialiasing), or be at an angle (image skew). Simply looping through the pixels seems like it would require some sort of line detection and then you could figure out a good calculate of the number of expected blocks between the three (or four) different corners.
You will need to use an image processing library to detect QRCodes. I’ve used go-zxing in the past which is 100% native go.
You will need to be familiar with the go image package that’s part of the standard library.
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Here is the problems
wireframe
It looks like depth buffer overlap problem. I think your scales are way off, and your depth buffer is not properly utilized. Probably you should focus on scale of your triangles and how far away to put the camera.
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I got this aerial image of a warehouse from Google Map, and I'd like to analyze the characteristics of the building inside the image. How can I find the approximate building footprint?
I learned some functions for matlab image processing. But I'm still a newbie for image processing. I'll be very appreciated if anyone can help me.
Or is it easier to figure out the area using the roadmap image below?
Import the roadmap image in Matlab, convert in in an 8bit greyscale image and use the following binarization.
BW = imbinarize(I,'adaptive','Sensitivity',0.68);
figure, imshow(BW,[0,1])
From Here you can either use regionprops (link) or extract lines using a Hough transform.
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I'd like to animate a 2D sprite in Unity3D. What's the best (least complex) method of doing this?
I have several images that I'd like to cycle through to create the animation. What is the simplest code and setup for this?
There are some scripts in the Unify Community wiki at Animating Tiled texture in javascript and in C#. They are a good starting point. Otherwise you can use the enhanced solution SpriteManager
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I am new to OpenGL ES. I was doing iOS development. Now I actually want to animate a 3d character. Can anyone help me out how I can animate it? I have some idea that it needs frames to animate. Can someone give me some sort of demo so I can work it out?
This is a great tutorial for animating graphics & making games.
http://www.lynda.com/tutorials/Building-and-Monetizing-Game-Apps-for-iOS/82407-2.html
There are different techniques for character animations but the skeletal-animation technique should be the best for characters. Using this technique requires some work:
Load animation frames
Interpolate animations
Create animation matrices
This not gonna be easy, especially when you want to use facial animations you need techniques like morph-targets additional to the skeletal animation ( skeletal works here too, but it's hard to use ).
Side-note:
Animations are CPU expensive and should be used carefully when creating apps for iOS.